- 14 Oct, 2020 26 commits
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Dan Williams authored
Patch series "device-dax: Support sub-dividing soft-reserved ranges", v5. The device-dax facility allows an address range to be directly mapped through a chardev, or optionally hotplugged to the core kernel page allocator as System-RAM. It is the mechanism for converting persistent memory (pmem) to be used as another volatile memory pool i.e. the current Memory Tiering hot topic on linux-mm. In the case of pmem the nvdimm-namespace-label mechanism can sub-divide it, but that labeling mechanism is not available / applicable to soft-reserved ("EFI specific purpose") memory [3]. This series provides a sysfs-mechanism for the daxctl utility to enable provisioning of volatile-soft-reserved memory ranges. The motivations for this facility are: 1/ Allow performance differentiated memory ranges to be split between kernel-managed and directly-accessed use cases. 2/ Allow physical memory to be provisioned along performance relevant address boundaries. For example, divide a memory-side cache [4] along cache-color boundaries. 3/ Parcel out soft-reserved memory to VMs using device-dax as a security / permissions boundary [5]. Specifically I have seen people (ab)using memmap=nn!ss (mark System-RAM as Persistent Memory) just to get the device-dax interface on custom address ranges. A follow-on for the VM use case is to teach device-dax to dynamically allocate 'struct page' at runtime to reduce the duplication of 'struct page' space in both the guest and the host kernel for the same physical pages. [2]: http://lore.kernel.org/r/20200713160837.13774-11-joao.m.martins@oracle.com [3]: http://lore.kernel.org/r/157309097008.1579826.12818463304589384434.stgit@dwillia2-desk3.amr.corp.intel.com [4]: http://lore.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com [5]: http://lore.kernel.org/r/20200110190313.17144-1-joao.m.martins@oracle.com This patch (of 23): In preparation for adding a new numa= option clean up the existing ones to avoid ifdefs in numa_setup(), and provide feedback when the option is numa=fake= option is invalid due to kernel config. The same does not need to be done for numa=noacpi, since the capability is already hard disabled at compile-time. Suggested-by:Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: kernel test robot <lkp@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Link: https://lkml.kernel.org/r/160106109960.30709.7379926726669669398.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/159643094279.4062302.17779410714418721328.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/159643094925.4062302.14979872973043772305.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Hui Su authored
kmemleak-test.c is just a kmemleak test module, which also can not be used as a built-in kernel module. Thus, i think it may should not be in mm dir, and move the kmemleak-test.c to samples/kmemleak/kmemleak-test.c. Fix the spelling of built-in by the way. Signed-off-by:
Hui Su <sh_def@163.com> Signed-off-by:
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Davidlohr Bueso authored
kmemleak_scan() currently relies on the big tasklist_lock hammer to stabilize iterating through the tasklist. Instead, this patch proposes simply using rcu along with the rcu-safe for_each_process_thread flavor (without changing scan semantics), which doesn't make use of next_thread/p->thread_group and thus cannot race with exit. Furthermore, any races with fork() and not seeing the new child should be benign as it's not running yet and can also be detected by the next scan. Avoiding the tasklist_lock could prove beneficial for performance considering the scan operation is done periodically. I have seen improvements of 30%-ish when doing similar replacements on very pathological microbenchmarks (ie stressing get/setpriority(2)). However my main motivation is that it's one less user of the global lock, something that Linus has long time wanted to see gone eventually (if ever) even if the traditional fairness issues has been dealt with now with qrwlocks. Of course this is a very long ways ahead. This patch also kills another user of the deprecated tsk->thread_group. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Signed-off-by:
Qian Cai <cai@lca.pw> Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Acked-by:
Oleg Nesterov <oleg@redhat.com> Link: https://lkml.kernel.org/r/20200820203902.11308-1-dave@stgolabs.netSigned-off-by:
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Abel Wu authored
The commit below is incomplete, as it didn't handle the add_full() part. commit a4d3f891 ("slub: remove useless kmem_cache_debug() before remove_full()") This patch checks for SLAB_STORE_USER instead of kmem_cache_debug(), since that should be the only context in which we need the list_lock for add_full(). Signed-off-by:
Abel Wu <wuyun.wu@huawei.com> Signed-off-by:
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Abel Wu authored
The ALLOC_SLOWPATH statistics is missing in bulk allocation now. Fix it by doing statistics in alloc slow path. Signed-off-by:
Pekka Enberg <penberg@kernel.org> Acked-by:
David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Hu Shiyuan <hushiyuan@huawei.com> Link: http://lkml.kernel.org/r/20200811022427.1363-1-wuyun.wu@huawei.comSigned-off-by:
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Abel Wu authored
The two conditions are mutually exclusive and gcc compiler will optimise this into if-else-like pattern. Given that the majority of free_slowpath is free_frozen, let's provide some hint to the compilers. Tests (perf bench sched messaging -g 20 -l 400000, executed 10x after reboot) are done and the summarized result: un-patched patched max. 192.316 189.851 min. 187.267 186.252 avg. 189.154 188.086 stdev. 1.37 0.99 Signed-off-by:
Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Hu Shiyuan <hushiyuan@huawei.com> Link: http://lkml.kernel.org/r/20200813101812.1617-1-wuyun.wu@huawei.comSigned-off-by:
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tangjianqiang authored
fix a typo error in slab.h "allocagtor" -> "allocator" Signed-off-by:
tangjianqiang <tangjianqiang@xiaomi.com> Signed-off-by:
Souptick Joarder <jrdr.linux@gmail.com> Link: https://lkml.kernel.org/r/1600230053-24303-1-git-send-email-tangjianqiang@xiaomi.comSigned-off-by:
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Mateusz Nosek authored
The removed code was unnecessary and changed nothing in the flow, since in case of returning NULL by 'kmem_cache_alloc_node' returning 'freelist' from the function in question is the same as returning NULL. Signed-off-by:
Mateusz Nosek <mateusznosek0@gmail.com> Signed-off-by:
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Luo Jiaxing authored
We found the following warning when build kernel with W=1: fs/fs_parser.c:192:5: warning: no previous prototype for `fs_param_bad_value' [-Wmissing-prototypes] int fs_param_bad_value(struct p_log *log, struct fs_parameter *param) ^ CC drivers/usb/gadget/udc/snps_udc_core.o And no header file define a prototype for this function, so we should mark it as static. Signed-off-by:Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc warnings in fs/xattr.c: ../fs/xattr.c:251: warning: Function parameter or member 'dentry' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'name' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'value' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'size' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'flags' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'delegated_inode' not described in '__vfs_setxattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'dentry' not described in '__vfs_removexattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'name' not described in '__vfs_removexattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'delegated_inode' not described in '__vfs_removexattr_locked' Fixes: 08b5d501 ("xattr: break delegations in {set,remove}xattr") Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Gang He authored
When we discard unused blocks on a mounted ocfs2 filesystem, fstrim handles each block goup with locking/unlocking global bitmap meta-file repeatedly. we should let fstrim thread take a break(if need) between unlock and lock, this will avoid the potential soft lockup problem, and also gives the upper applications more IO opportunities, these applications are not blocked for too long at writing files. Signed-off-by:
Gang He <ghe@suse.com> Signed-off-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Jun Piao <piaojun@huawei.com> Link: https://lkml.kernel.org/r/20200927015815.14904-1-ghe@suse.comSigned-off-by:
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Randy Dunlap authored
Drop duplicated words {the, and} in comments. Signed-off-by: -
Rustam Kovhaev authored
Number of bytes allocated for mft record should be equal to the mft record size stored in ntfs superblock as reported by syzbot, userspace might trigger out-of-bounds read by dereferencing ctx->attr in ntfs_attr_find() Reported-by: syzbot+aed06913f36eff9b544e@syzkaller.appspotmail.com Signed-off-by:
Rustam Kovhaev <rkovhaev@gmail.com> Signed-off-by:
Anton Altaparmakov <anton@tuxera.com> Link: https://syzkaller.appspot.com/bug?extid=aed06913f36eff9b544e Link: https://lkml.kernel.org/r/20200824022804.226242-1-rkovhaev@gmail.comSigned-off-by:
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Borislav Petkov authored
So that comparing with objdump output from vmlinux can ease pinpointing where the trapping instruction actually is. An example is better than a thousand words: $ PC=0xffffffff8329a927 ./scripts/decodecode < ~/tmp/syz/gfs2.splat [ 477.379104][T23917] Code: 48 83 ec 28 48 89 3c 24 48 89 54 24 08 e8 c1 b4 4a fe 48 8d bb 00 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 97 05 00 00 48 8b 9b 00 01 00 00 48 85 db 0f 84 All code ======== ffffffff8329a8fd: 48 83 ec 28 sub $0x28,%rsp ffffffff8329a901: 48 89 3c 24 mov %rdi,(%rsp) ffffffff8329a905: 48 89 54 24 08 mov %rdx,0x8(%rsp) ffffffff8329a90a: e8 c1 b4 4a fe callq 0xffffffff81745dd0 ffffffff8329a90f: 48 8d bb 00 01 00 00 lea 0x100(%rbx),%rdi ffffffff8329a916: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax ffffffff8329a91d: fc ff df ffffffff8329a920: 48 89 fa mov %rdi,%rdx ffffffff8329a923: 48 c1 ea 03 shr $0x3,%rdx ffffffff8329a927:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction ffffffff8329a92b: 0f 85 97 05 00 00 jne 0xffffffff8329aec8 ffffffff8329a931: 48 8b 9b 00 01 00 00 mov 0x100(%rbx),%rbx ffffffff8329a938: 48 85 db test %rbx,%rbx ffffffff8329a93b: 0f .byte 0xf ffffffff8329a93c: 84 .byte 0x84 Signed-off-by:
Borislav Petkov <bp@suse.de> Signed-off-by:
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Naoki Hayama authored
Add "abitrary||arbitrary". Signed-off-by:
Naoki Hayama <naoki.hayama@lineo.co.jp> Signed-off-by:
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Wang Qing authored
Increase direcly,ununsed,manger spelling error check Signed-off-by:
Wang Qing <wangqing@vivo.com> Signed-off-by:
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Lukas Bulwahn authored
During an investigation to fix up the execute bits of scripts in the kernel repository, Andrew Morton and Kees Cook pointed out that the execute bit should not matter, and that build scripts cannot rely on that. Kees could not point to any documentation, though. Masahiro Yamada explained the convention of setting execute bits to make it easier for manual script invocation. Provide some basic documentation how the build shall invoke scripts, such that the execute bits do not matter, and acknowledge that execute bits are useful nonetheless. This serves as reference for further clean-up patches in the future. Suggested-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by:
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Nick Desaulniers authored
When enabling CONFIG_TRIM_UNUSED_KSYMS, the linker will warn about the orphan sections: (".discard.ksym") is being placed in '".discard.ksym"' repeatedly when linking vmlinux. This is because the stringification operator, `#`, in the preprocessor escapes strings. GCC and Clang differ in how they treat section names that contain \". The portable solution is to not use a string literal with the preprocessor stringification operator. Fixes: commit bbda5ec6 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS") Reported-by:kbuild test robot <lkp@intel.com> Suggested-by:
Nick Desaulniers <ndesaulniers@google.com> Signed-off-by:
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Nick Desaulniers authored
The stringification operator, `#`, in the preprocessor escapes strings. For example, `# "foo"` becomes `"\"foo\""`. GCC and Clang differ in how they treat section names that contain \". The portable solution is to not use a string literal with the preprocessor stringification operator. In this case, since __section unconditionally uses the stringification operator, we actually want the more verbose __attribute__((__section__())). Fixes: commit e04462fb ("Compiler Attributes: remove uses of __attribute__ from compiler.h") Signed-off-by:
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Nick Desaulniers authored
As Kees suggests, doing so provides developers with two useful pieces of information: - The kernel build was attempting to use GCC. (Maybe they accidentally poked the wrong configs in a CI.) - They need 4.9 or better. ("Upgrade to what version?" doesn't need to be dug out of documentation, headers, etc.) Suggested-by:Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by:
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Reviewed-by:
Nathan Chancellor <natechancellor@gmail.com> Reviewed-by:
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Marco Elver authored
Since the kernel now requires at least Clang 10.0.1, remove any mention of old Clang versions and simplify the documentation. Signed-off-by:
Marco Elver <elver@google.com> Signed-off-by:
Andrey Konovalov <andreyknvl@google.com> Reviewed-by:
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Nick Desaulniers authored
This partially reverts commit b0fe66cf. The minimum supported version of clang is now clang 10.0.1. We still want to pass -meabi=gnu. Suggested-by:
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Nick Desaulniers authored
This reverts commit 3acf4be2. The minimum supported version of clang is clang 10.0.1. Suggested-by:
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Nick Desaulniers authored
This reverts commit b9249cba. The minimum supported version of clang is now 10.0.1. Suggested-by:
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Nick Desaulniers authored
This reverts commit 87e0d4f0. -fno-merge-all-constants has been the default since clang-6; the minimum supported version of clang in the kernel is clang-10 (10.0.1). Suggested-by:
Fangrui Song <maskray@google.com> Reviewed-by:
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Nick Desaulniers authored
Patch series "set clang minimum version to 10.0.1", v3. Adds a compile time #error to compiler-clang.h setting the effective minimum supported version to clang 10.0.1. A separate patch has already been picked up into the Documentation/ tree also confirming the version. Next are a series of reverts. One for 32b arm is a partial revert. Then Marco suggested fixes to KASAN docs. Finally, improve the warning for GCC too as per Kees. This patch (of 7): During Plumbers 2020, we voted to just support the latest release of Clang for now. Add a compile time check for this. We plan to remove workarounds for older versions now, which will break in subtle and not so subtle ways. Suggested-by:
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- 13 Oct, 2020 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 asm updates from Borislav Petkov: "Two asm wrapper fixes: - Use XORL instead of XORQ to avoid a REX prefix and save some bytes in the .fixup section, by Uros Bizjak. - Replace __force_order dummy variable with a memory clobber to fix LLVM requiring a definition for former and to prevent memory accesses from still being cached/reordered, by Arvind Sankar" * tag 'x86_asm_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Replace __force_order with a memory clobber x86/uaccess: Use XORL %0,%0 in __get_user_asm() -
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block driver updates from Jens Axboe: "Here are the driver updates for 5.10. A few SCSI updates in here too, in coordination with Martin as they depend on core block changes for the shared tag bitmap. This contains: - NVMe pull requests via Christoph: - fix keep alive timer modification (Amit Engel) - order the PCI ID list more sensibly (Andy Shevchenko) - cleanup the open by controller helper (Chaitanya Kulkarni) - use an xarray for the CSE log lookup (Chaitanya Kulkarni) - support ZNS in nvmet passthrough mode (Chaitanya Kulkarni) - fix nvme_ns_report_zones (Christoph Hellwig) - add a sanity check to nvmet-fc (James Smart) - fix interrupt allocation when too many polled queues are specified (Jeffle Xu) - small nvmet-tcp optimization (Mark Wunderlich) - fix a controller refcount leak on init failure (Chaitanya Kulkarni) - misc cleanups (Chaitanya Kulkarni) - major refactoring of the scanning code (Christoph Hellwig) - MD updates via Song: - Bug fixes in bitmap code, from Zhao Heming - Fix a work queue check, from Guoqing Jiang - Fix raid5 oops with reshape, from Song Liu - Clean up unused code, from Jason Yan - Discard improvements, from Xiao Ni - raid5/6 page offset support, from Yufen Yu - Shared tag bitmap for SCSI/hisi_sas/null_blk (John, Kashyap, Hannes) - null_blk open/active zone limit support (Niklas) - Set of bcache updates (Coly, Dongsheng, Qinglang)" * tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (78 commits) md/raid5: fix oops during stripe resizing md/bitmap: fix memory leak of temporary bitmap md: fix the checking of wrong work queue md/bitmap: md_bitmap_get_counter returns wrong blocks md/bitmap: md_bitmap_read_sb uses wrong bitmap blocks md/raid0: remove unused function is_io_in_chunk_boundary() nvme-core: remove extra condition for vwc nvme-core: remove extra variable nvme: remove nvme_identify_ns_list nvme: refactor nvme_validate_ns nvme: move nvme_validate_ns nvme: query namespace identifiers before adding the namespace nvme: revalidate zone bitmaps in nvme_update_ns_info nvme: remove nvme_update_formats nvme: update the known admin effects nvme: set the queue limits in nvme_update_ns_info nvme: remove the 0 lba_shift check in nvme_update_ns_info nvme: clean up the check for too large logic block sizes nvme: freeze the queue over ->lba_shift updates nvme: factor out a nvme_configure_metadata helper ... -
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull libata updates from Jens Axboe: "Nothing major in here, just fixes or improvements collected over the last few months" * tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block: ata: ahci: mvebu: Make SATA PHY optional for Armada 3720 MAINTAINERS: remove LIBATA PATA DRIVERS entry pata_cmd64x: Use fallthrough pseudo-keyword ahci: qoriq: enable acpi support in qoriq ahci driver sata, highbank: simplify the return expression of ahci_highbank_suspend ahci: Add Intel Rocket Lake PCH-H RAID PCI IDs
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull io_uring updates from Jens Axboe: - Add blkcg accounting for io-wq offload (Dennis) - A use-after-free fix for io-wq (Hillf) - Cancelation fixes and improvements - Use proper files_struct references for offload - Cleanup of io_uring_get_socket() since that can now go into our own header - SQPOLL fixes and cleanups, and support for sharing the thread - Improvement to how page accounting is done for registered buffers and huge pages, accounting the real pinned state - Series cleaning up the xarray code (Willy) - Various cleanups, refactoring, and improvements (Pavel) - Use raw spinlock for io-wq (Sebastian) - Add support for ring restrictions (Stefano) * tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (62 commits) io_uring: keep a pointer ref_node in file_data io_uring: refactor *files_register()'s error paths io_uring: clean file_data access in files_register io_uring: don't delay io_init_req() error check io_uring: clean leftovers after splitting issue io_uring: remove timeout.list after hrtimer cancel io_uring: use a separate struct for timeout_remove io_uring: improve submit_state.ios_left accounting io_uring: simplify io_file_get() io_uring: kill extra check in fixed io_file_get() io_uring: clean up ->files grabbing io_uring: don't io_prep_async_work() linked reqs io_uring: Convert advanced XArray uses to the normal API io_uring: Fix XArray usage in io_uring_add_task_file io_uring: Fix use of XArray in __io_uring_files_cancel io_uring: fix break condition for __io_uring_register() waiting io_uring: no need to call xa_destroy() on empty xarray io_uring: batch account ->req_issue and task struct references io_uring: kill callback_head argument for io_req_task_work_add() io_uring: move req preps out of io_issue_sqe() ...
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block updates from Jens Axboe: - Series of merge handling cleanups (Baolin, Christoph) - Series of blk-throttle fixes and cleanups (Baolin) - Series cleaning up BDI, seperating the block device from the backing_dev_info (Christoph) - Removal of bdget() as a generic API (Christoph) - Removal of blkdev_get() as a generic API (Christoph) - Cleanup of is-partition checks (Christoph) - Series reworking disk revalidation (Christoph) - Series cleaning up bio flags (Christoph) - bio crypt fixes (Eric) - IO stats inflight tweak (Gabriel) - blk-mq tags fixes (Hannes) - Buffer invalidation fixes (Jan) - Allow soft limits for zone append (Johannes) - Shared tag set improvements (John, Kashyap) - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel) - DM no-wait support (Mike, Konstantin) - Request allocation improvements (Ming) - Allow md/dm/bcache to use IO stat helpers (Song) - Series improving blk-iocost (Tejun) - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang, Xianting, Yang, Yufen, yangerkun) * tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits) block: fix uapi blkzoned.h comments blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue blk-mq: get rid of the dead flush handle code path block: get rid of unnecessary local variable block: fix comment and add lockdep assert blk-mq: use helper function to test hw stopped block: use helper function to test queue register block: remove redundant mq check block: invoke blk_mq_exit_sched no matter whether have .exit_sched percpu_ref: don't refer to ref->data if it isn't allocated block: ratelimit handle_bad_sector() message blk-throttle: Re-use the throtl_set_slice_end() blk-throttle: Open code __throtl_de/enqueue_tg() blk-throttle: Move service tree validation out of the throtl_rb_first() blk-throttle: Move the list operation after list validation blk-throttle: Fix IO hang for a corner case blk-throttle: Avoid tracking latency if low limit is invalid blk-throttle: Avoid getting the current time if tg->last_finish_time is 0 blk-throttle: Remove a meaningless parameter for throtl_downgrade_state() block: Remove redundant 'return' statement ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: - Fix the #DE oops message string format which confused tools parsing crash information (Thomas Gleixner) - Remove an unused variable in the UV5 code which was triggering a build warning with clang (Mike Travis) * tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Remove unused variable in UV5 NMI handler x86/traps: Fix #DE Oops message regression
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Mike Travis authored
Remove an unused variable. Signed-off-by:
Mike Travis <mike.travis@hpe.com> Signed-off-by:
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Thomas Gleixner authored
The conversion of #DE to the idtentry mechanism introduced a change in the Ooops message which confuses tools which parse crash information in dmesg. Remove the underscore from 'divide_error' to restore previous behaviour. Fixes: 9d06c402 ("x86/entry: Convert Divide Error to IDTENTRY") Reported-by:
Dmitry Vyukov <dvyukov@google.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon updates from Guenter Roeck: "New driver and chip support: - Moortec MR75203 PVT controller - MPS Multi-phase mp2975 controller - ADM1266 - Zen3 CPUs - Intel MAX 10 BMC Enhancements: - Support for rated attributes in hwmon core - MAX20730: - Device monitoring via debugfs - VOUT readin adjustment vie devicetree bindings - LM75: - Devicetree support - Regulator support - Improved accumulationm logic in amd_energy driver - Added fan sensor to gsc-hwmon driver - Support for simplified I2C probing Various other minor fixes and improvements" * tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits) hwmon: (pmbus/max20730) adjust the vout reading given voltage divider dt-bindings: hwmon: max20730: adding device tree doc for max20730 hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller hwmon: Add DT bindings schema for PVT controller dt-bindings: hwmon: Add the +vs supply to the lm75 bindings dt-bindings: hwmon: Convert lm75 bindings to yaml docs: hwmon: (ltc2945) update datasheet link hwmon: (mlxreg-fan) Fix double "Mellanox" hwmon: (pmbus/max20730) add device monitoring via debugfs hwmon: (pmbus/max34440) Fix OC fault limits hwmon: (bt1-pvt) Wait for the completion with timeout hwmon: (bt1-pvt) Cache current update timeout hwmon: (bt1-pvt) Test sensor power supply on probe hwmon: (lm75) Add regulator support hwmon: Add hwmon driver for Intel MAX 10 BMC dt-bindings: Add MP2975 voltage regulator device hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller hwmon: (tmp513) fix spelling typo in comments hwmon: (amd_energy) Update driver documentation hwmon: (amd_energy) Improve the accumulation logic ... -
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO updates from Linus Walleij: "This time very little driver changes but lots of core changes. We have some interesting cooperative work for ARM and Intel alike, making the GPIO subsystem more and more suitable for industrial systems and the like, in addition to the in-kernel users. We touch driver core (device properties) and lib/* by adding one simple string array free function, these are authored by Andy Shevchenko who is a well known and recognized core helpers maintainers so this should be fine. We also see some Android GKI-related modularization in the MXC drivers. Core changes: - The big core change is the updated (v2) userspace character device API. This corrects badly designed 64-bit alignment around the line events. We also add the debounce request feature. This echoes the often quotes passage from Frederick Brooks "The mythical man-month" to always throw one away, which we have seen before in things such as V4L2. So we put in a new one and deprecate and obsolete the old one. - All example tools in tools/gpio/* are migrated to the new API to set a good example. The libgpiod userspace library has been augmented to use this new API pretty much from day 1. - Some misc API hardening by using strn* function calls has been added as well. - Use the simpler IDA interface for GPIO chip instance enumeration. - Add device core function for counting string arrays in device properties. - Provide a generic library function kfree_strarray() that can be used throughout the kernel. Driver enhancements: - The DesignWare dwapb-gpio driver has been enhanced and now uses the IRQ handling in the gpiolib core. - The mockup and aggregator drivers have seen some substantial code clean-up and now use more of the core kernel inftrastructure. - Misc cleanups using dev_err_probe(). - The MXC drivers (Freescale/NXP) can now be built modularized, which makes modularized GKI Android kernels happy" * tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits) gpiolib: Update header block in gpiolib-cdev.h gpiolib: cdev: switch from kstrdup() to kstrndup() docs: gpio: add a new document to its index.rst gpio: pca953x: Add support for the NXP PCAL9554B/C tools: gpio: add debounce support to gpio-event-mon tools: gpio: add multi-line monitoring to gpio-event-mon tools: gpio: port gpio-event-mon to v2 uAPI tools: gpio: port gpio-hammer to v2 uAPI tools: gpio: rename nlines to num_lines tools: gpio: port gpio-watch to v2 uAPI tools: gpio: port lsgpio to v2 uAPI gpio: uapi: document uAPI v1 as deprecated gpiolib: cdev: support setting debounce gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL gpiolib: cdev: support edge detection for uAPI v2 gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL gpiolib: add build option for CDEV v1 ABI gpiolib: make cdev a build option ... -
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "There's quite a lot of changes for SPI in this release but none in the core, they're all mostly small driver updates and additions. Some of the more notable changes include: - A huge set of cleanups, optimizations and improvements for the DesignWare driver from Serge Semin finishing up the work started last release. - Conversion of the Zynq gqspi driver to spi-mem. - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742" * tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits) spi: cadence: Add SPI transfer delays spi: dw: Add Baikal-T1 SPI Controller bindings spi: dw: Add Baikal-T1 SPI Controller glue driver spi: dw: Add poll-based SPI transfers support spi: dw: Introduce max mem-ops SPI bus frequency setting spi: dw: Add memory operations support spi: dw: Add generic DW SSI status-check method spi: dw: Move num-of retries parameter to the header file spi: dw: Explicitly de-assert CS on SPI transfer completion spi: dw: De-assert chip-select on reset spi: dw: Discard chip enabling on DMA setup error spi: dw: Unmask IRQs after enabling the chip spi: dw: Perform IRQ setup in a dedicated function spi: dw: Refactor IRQ-based SPI transfer procedure spi: dw: Refactor data IO procedure spi: dw: Add DW SPI controller config structure spi: dw: Update Rx sample delay in the config function spi: dw: Simplify the SPI bus speed config procedure spi: dw: Update SPI bus speed in a config function spi: dw: Detach SPI device specific CR0 config method ... -
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator updates from Mark Brown: "This is a fairly small release for the regulator API, there's quite a few new devices supported and some important improvements around coupled regulators in the core but mostly just small fixes and improvements otherwise. Summary: - Fixes and cleanups around the handling of coupled regulators. - A special driver for some Raspberry Pi panels with some unusually custom stuff around them. - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF" * tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits) regulator: bd9576: Fix print regulator: bd9576: fix regulator binfdings dt node names dt-bindings: regulator: document pm8950 and pm8953 smd regulators regulator: qcom_smd: add pm8953 regulators regulator: Make constraint debug processing conditional on DEBUG regulator: qcom: labibb: Constify static structs regulator: dt-bindings: Document the PM660/PM660L PMICs entries regulator: qcom_smd: Add PM660/PM660L regulator support regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries regulator: qcom_spmi: Add PM660/PM660L regulators regulator: qcom_spmi: Add support for new regulator types regulator: core: Enlarge max OF property name length to 64 chars regulator: tps65910: use regmap accessors regulator: rtmv20: Add missing regcache cache only before marked as dirty regulator: rtmv20: Update DT binding document and property name parsing regulator: rtmv20: Add DT-binding document for Richtek RTMV20 regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator regulator: resolve supply after creating regulator regulator: print symbolic errors in kernel messages regulator: print state at boot ... -
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmapLinus Torvalds authored
Pull regmap updates from Mark Brown: "Quite a busy release for regmap, mostly support for new features useful on fairly small subsets of devices. The user visible features are: - A new API for registering large numbers of regmap fields at once. - Support for Intel AVMM buses connected via SPI. - Support for 12/20 address/value layouts. - Support for yet another scheme for acknowledging interrupts used on some Qualcomm devices" * tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: irq: Add support to clear ack registers regmap: add support to regmap_field_bulk_alloc/free apis regmap: destroy mutex (if used) in regmap_exit() regmap: debugfs: use semicolons rather than commas to separate statements regmap: debugfs: Fix more error path regressions regmap: Add support for 12/20 register formatting regmap: Add can_sleep configuration option regmap: soundwire: remove unused header mod_devicetable.h regmap: Use flexible sleep regmap: add Intel SPI Slave to AVMM Bus Bridge support -
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: - the usbvision driver was dropped from staging - the Zoran driver were re-added at staging. It gained lots of improvements, and was converted to use videobuf2 API - a new virtual driver (vidtv) was added in order to allow testing the digital TV framework and APIs - the media uAPI documentation gained a glossary with commonly used terms, helping to simplify some parts of the docs - more cleanups at the atomisp driver - Mediatek VPU gained support for MT8183 - added support for codecs with supports doing colorspace conversion (CSC) - support for CSC API was added at vivid and rksip1 drivers - added a helper core support and uAPI for better supporting H.264 codecs - added support for Renesas R8A774E1 - use the new SPDX GFDL-1.1-no-invariants-or-later license on media uAPI docs, instead of a license text - Venus driver has gained VP9 codec support - lots of other cleanups and driver improvements * tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits) media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning media: tvp7002: fix uninitialized variable warning media: s5k5baf: drop 'data' field in struct s5k5baf_fw media: dt-bindings: media: venus: Add an optional power domain for perf voting media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats media: staging: rkisp1: uapi: Do not use BIT() macro media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done media: usbtv: Fix refcounting mixup media: zoran.rst: place it at the right place this time media: add Zoran cardlist media: admin-guide: update cardlists media: siano: rename a duplicated card string media: zoran: move documentation file to the right place media: atomisp: fixes build breakage for ISP2400 due to a cleanup media: zoran: fix mixed case on vars media: zoran: get rid of an unused var media: zoran: use upper case for card types media: zoran: fix sparse warnings media: zoran: fix smatch warning media: zoran: update TODO ...
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